Low-air-consumption three-column iron core suitable for dry-type transformer

• Main Authors: LI SHAN, FU JING, WU MENG, XIAO ZHENWU, MA CONG, ZHENG XIANTAO
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The utility model relates to a low-air-consumption three-column iron core suitable for a dry-type transformer, a middle column is provided with auxiliary holes for positioning, each side column and each iron yoke are not provided with the auxiliary holes for positioning, the number of the auxiliary holes arranged on the middle column is two, and the auxiliary holes are respectively arranged on the upper portion and the lower portion of the middle column. According to the utility model, the no-load loss can be reduced, the magnetic resistance difference between the inner ring and the outer ring can be reduced, and the structure can be used for occasions such as a dry-type transformer. 本实用新型涉及适应于干式变压器的低空耗三柱铁心，其中柱上设有于定位的工艺孔，各边柱和各铁轭上均不设有用于定位的工艺孔，设置于中柱上的工艺孔数量为两个，分别位于中柱的上部和下部。本实用新型有助于减少空载损耗，且有助于减小内圈和外圈的磁阻差异，可用于干式变压器等场合。